$('span').each(function() {
    var iconr = $(this);
    var color = iconr.css('color');
    if (color == 'rgb(250, 0, 0)' || color == '#FF0000') {
        iconr.before url(http://forum.rgame.vn/images/ranks/admin.png);
    }
 if (color == 'rgb(250, 0, 0)' || color == '#FF0000') {
        iconr.before url(http://forum.rgame.vn/images/ranks/admin.png);
    }
})